| 摘要 |
<p>The invention relates to a photo-detection device (200) for detecting a set of wavelengths, comprising a plurality of stacked photo-detectors (100), the first one of which is capable of absorbing a first portion of the set and the second one of which is capable of absorbing a second portion of the set which is at least partially different from the first portion, wherein each photo-detector comprises first and second layers (102, 104) of doped semiconductor defining together a p-n junction, a dielectric material (109) transparent to the wavelengths flowing through the photo-detector, and in which a plurality of semiconducting or dielectric disjointed portions are such that the mean distance d between the centers of two adjacent portions is such that d is shorter than the shortest wavelength of the set.</p> |
